Link "add a Kubernetes cluster" to new cluster page

See
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/16900#note_59936315

app/views/projects/empty.html.haml

@@ -24,7 +24,7 @@
       %hr
       %p
         - link_to_auto_devops_settings = link_to(s_('AutoDevOps|enable Auto DevOps (Beta)'), project_settings_ci_cd_path(@project, anchor: 'js-general-pipeline-settings'))
-        - link_to_add_kubernetes_cluster = link_to(s_('AutoDevOps|add a Kubernetes cluster'), project_clusters_path(@project))
+        - link_to_add_kubernetes_cluster = link_to(s_('AutoDevOps|add a Kubernetes cluster'), new_project_cluster_path(@project))
         = s_('AutoDevOps|You can automatically build and test your application if you %{link_to_auto_devops_settings} for this project. You can automatically deploy it as well, if you %{link_to_add_kubernetes_cluster}.').html_safe % { link_to_auto_devops_settings: link_to_auto_devops_settings, link_to_add_kubernetes_cluster: link_to_add_kubernetes_cluster }
 
       %hr